College of Massage Therapists of British Columbia (CMTBC) Practice Exam

Which pulse may be affected in a patient diagnosed with anterior compartment syndrome?

1. Radial pulse

2. Dorsalis pedis pulse

3. Popliteal pulse

4. Femoral pulse

The correct answer is: Dorsalis pedis pulse

In the context of anterior compartment syndrome, the dorsalis pedis pulse is the most relevant pulse that may be affected. Anterior compartment syndrome occurs when there is increased pressure within a muscle compartment, leading to reduced blood flow and potential ischemia. In this syndrome, the anterior tibial artery, which supplies the anterior compartment of the leg, could be compromised. The dorsalis pedis artery is a continuation of the anterior tibial artery and provides blood supply to the dorsum of the foot. Therefore, any impairment of blood flow due to anterior compartment syndrome would most significantly impact the dorsalis pedis pulse, making it weak or absent when assessed. In contrast, the radial, popliteal, and femoral pulses are located in different anatomical locations and are supplied by different arterial systems. While they may be present, they wouldn’t typically provide information on the status of blood flow specifically to the anterior compartment of the leg.